Doesn't this comment on the lack of user onboarding / experience design? Don't get me wrong, I am extremely grateful for any forum like this that connects designers but it would be nice to improve a few more basic elements of this site.

Check out FitStar. Its great because you can do it anywhere and there are different options depending on what your goals are and how much time you have. Plus it learns from you (based on the feedback you give after each rep). Its awesome. iPad/iPhone only